Faster FlowFAST H - 7.C HEPA Filter Replacement; 7.D Motor-Fan Replacement

a D:GROUP company
00020EN Rev.09 – 12/2012 22
7.C REPLACEMENT OF HEPA FILTER (by technical assistance personnel)
IMPORTANT: For the safety of the personnel and the environment, the use of PVC gloves is
recommended as well as the collection of the replaced HEPA filters in polyethylene
bags.
[See chapter 13 – diagram for maintenance operations].
1. Unscrew the screws [11] and remove the panel [12]
2. Unscrew the nuts [13] and remove the filter clamps
3. Remove the HEPA filter [14]; with the gasket deformation the filter could be lightly sticky to the structure in
some points. In this case exert uniform pressure avoiding, if possible, the use of tools between the HEPA
filter and the frame.
4. For re-assembly reverse the above instructions, taking care :
a) Don’t tighten nuts [13] too much
b) To centre the filter in its housing.
N.B : The new gasket is already stuck on the new filter.
IMPORTANT: After replacing the filter, proceed to the calibration of the motor-fan velocity, and
perform also a check with a "light scattering" meter.
7.D REPLACEMENT OF MOTOR-FAN (by technical assistance personnel)
[See chapter 13 – diagram for maintenance operations].
1. Switch the cabinet off and disconnect it from the power supply.
2. Remove the pre-filter/s [10] from the case [1].
3. Disconnect the feeding cables of the motor-fan.
4. Disconnect the feeding cables of the anemometer (if installed).
5. Unscrew the screws [8] and remove the motor-fan [9].
6. For re-assembly reverse the above instructions.